Question

严重: Servlet.service() for servlet [springmvc] in context with

严重: Servlet.service() for servlet [springmvc] in context with path [/Item] threw exception [Request processing failed; nested exception is org.apache.ibatis.binding.BindingException:
严重: Servlet.service() for servlet [springmvc] in context with path [/Item] threw exception [Request processing failed; nested exception is org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.beicai.item.mapper.BooksMapper.lookBooks] with root cause
org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.beicai.item.mapper.BooksMapper.lookBooks
我明明写了com.beicai.item.mapper.BooksMapper.lookBooks就是找不到，本来好好的自己忽然变成这样，我是新手不懂求大神帮忙

Answer 1

Failed to convert property value of type 'java.lang.String' to required type 'int' for property 'unit_id'; nested exception is java.lang.NumberFormatException

定义是int，传递了 String的值